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Add and Multiply Complex Numbers

Related Topics:
Common Core (The Complex Number System)
Common Core for Mathematics



Examples, solutions, videos, and lessons to help High School students know how to use the relation i2 = –1 and the commutative, associative, and distributive properties to add, subtract, and multiply complex numbers.

Suggested Learning Targets

  • I can add complex numbers
  • I can subtract complex numbers
  • I can multiply complex numbers

Common Core: HSN-CN.A.2

The following table shows how to add and multiply complex numbers. Scroll down the page for more examples and solutions.

Add and Multiply Complex Numbers

Add and Subtract Complex Numbers

Adding Complex Numbers Complex Numbers - Graphing, Adding, Subtracting.



Adding and Subtracting Complex (Imaginary) Numbers. Introduction to complex numbers. Adding, subtracting and multiplying complex numbers.

Multiply Complex Numbers

Multiplying Complex Numbers. Complex Numbers: Multiplying - Ex 1.
Examples of multiplying two complex numbers and simplifying. Complex Numbers: Multiplying - Ex 2.
Example of multiplying three complex numbers and simplifying. Multiply Complex Numbers
This video provides examples of how to multiply complex numbers.

Try out our new and fun Fraction Concoction Game.

Add and subtract fractions to make exciting fraction concoctions following a recipe. There are four levels of difficulty: Easy, medium, hard and insane. Practice the basics of fraction addition and subtraction or challenge yourself with the insane level.

Fraction Concoction Game


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